Sealmaster NP-23
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - NP-23
Dynamic Load Rating (lb)
5,782
Rolling Element
Ball Bearing
Housing Base
Solid
Bore Shape
Straight
Need help confirming fit? Send us the current part number, shaft size, housing photo, or equipment model.
Product Overview
- Powder coated epoxy cast iron housing with extended inner ring bearings
- Zone hardened inner ring with 120° spacing setscrew locking with diamond faceted setscrews
- Unique land riding retainer design provides superior pocket clearance that allows for 360° grease circulation around the rolling elements resulting in better retained and utilized lubrication.
- Sealmaster™ exclusive lock pin , dimple for direct lubrication and anti-rotation
| Part Number | 700188 |
| Brand | Sealmaster |
| Rolling Element | Ball Bearing |
| Housing Base | Solid |
| Bore Shape | Straight |
| Base Width (in) | 1.88 |
| Overall Height (in) | 3.75 |
| Overall Length (in) | 6.56 |
| Overall Width (in) | 1.88 |
| Housing Construction | One Piece |
| Bolt Size (in) | 1/2 |
| Outer Ring Land Profile | Standard |
| Housing Color | Black |
| Misalignment Type | Static Only |
| Bore Size - Inch | 1.4375 |
| Foot Height (in) | 0.63 |
| Base to Center Height (in) | 1.875 |
| Cage Material | PPS - Polyphenylene Sulfide |
| Length Through Bore (in) | 1.685 |
| Housing Type (Product Selection) | Pillow Block, Two Bolt |
| Seal Type (Product Selection) | Felt Labyrinth Seal |
| Housing Style | Pillow Block |
| Inner Race Heat Treat Method | Zone-Hardened |
| Ability to Relubricate | Yes |
| Base Length (in) | 6.56 |
| Bolt Spacing Min (in) | 4.69 |
| Shaft Locking Type | Set Screw |
| Housing Material | Cast Iron |
| Bearing Type | Standard Duty |
| Misalignment Capability | ±2.0° Misalignment - Static Only |
| Bolt Spacing (in) | 5 |
| Insert | 2-17 |
| Vibration Frequency Outer Ring Defect | 0.0595 |
| Size Code | 2-17 |
| Vibration Frequency Fundamental Train | 0.0066 |
| Vibration Frequency Roller Spin | 0.0386 |
| Bolt Spacing Max (in) | 5.31 |
| Maximum Speed (RPM) | 4650 |
| Housing Coating | Powder Coated |
| Grease Fitting Thread Size | 1/4-28 |
| Lubricant | Lithium Complex NLGI 2 Grease |
| Bearing Insert Finish | Black Oxide |
| End Cap Available | No |
| Static Load Rating (lb) | 3,493 |
| Radial Clearance | Standard |
| Cage Type | Land Riding Retainer |
| Vibration Frequency Inner Ring Defect | 0.0905 |
| Bearing Insert Material | 52100 Bearing Steel |
| Dynamic Load Rating (lb) | 5,782 |
| Centerline to Outermost Bearing Face (in) | 1 |
| Fixed vs. Expansion | Fixed |
| Inner Ring Outside Diameter (in) | 1.851 |
| Max Operating Temperature (F) | 220 |
Always verify dimensions, load ratings, material, and seal type before ordering.
| Brandi | Sealmaster |
| Mfg. Catalog Numberi | NP-23 |
| Mfg. Part Numberi | 700188 |
| GDS #i | GDS-115396 |
| Categoryi | Bearings / Mounted / Mounted Ball Bearings / Pillow Blocks |
| UPCi | 662461001646 |
